[comport] ** ERROR ** could not open device /dev/ttyACM0: failure(13): Permission denied
I have an Odroid which I use either with an SD card or an eMMC module, both with the same OS (Debian Jessie for Odroid). In the SD card I've got Pd-0.45-5 and in the eMMC module I've got Pd-0.46-0 installed. With the SD card I can open the port /dev/ttyACM0 (I've got a Teensy 3.1 plugged in via USB) but with the eMMC module I get this error: "[comport] ** ERROR ** could not open device /dev/ttyACM0: failure(13): Permission denied"
Any idea why is that? And how can it be solved? I've checked the /dev/ directory and the port exists in both the SD and the eMMC.
Solved it. Had to install the Linux udev rules which can be found here http://pjrc.com/teensy/td_download.html along with instructions.
On Wed, Oct 8, 2014 at 6:10 PM, Alexandros Drymonitis adrcki@gmail.com wrote:
I have an Odroid which I use either with an SD card or an eMMC module, both with the same OS (Debian Jessie for Odroid). In the SD card I've got Pd-0.45-5 and in the eMMC module I've got Pd-0.46-0 installed. With the SD card I can open the port /dev/ttyACM0 (I've got a Teensy 3.1 plugged in via USB) but with the eMMC module I get this error: "[comport] ** ERROR ** could not open device /dev/ttyACM0: failure(13): Permission denied"
Any idea why is that? And how can it be solved? I've checked the /dev/ directory and the port exists in both the SD and the eMMC.
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Alexandros Drymonitis